// Tencent is pleased to support the open source community by making TNN available.
//
// Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
// specific language governing permissions and limitations under the License.

#include "onnx_op_converter.h"
#include "onnx_utility.h"

DECLARE_OP_CONVERTER_WITH_FUNC(Unsqueeze,
                               virtual std::vector<std::string> GetValidInputNames(NodeProto &node, OnnxNetInfo &net_info););

string OnnxOpConverterUnsqueeze::TNNOpType(NodeProto &node,
                                           OnnxNetInfo &net_info) {
    return "Unsqueeze";
}

std::vector<std::string> OnnxOpConverterUnsqueeze::GetValidInputNames(NodeProto &node, OnnxNetInfo &net_info) {
    return {node.input(0)};
}

string OnnxOpConverterUnsqueeze::TNNLayerParam(NodeProto &node,
                                               OnnxNetInfo &net_info) {
    const std::string &onnx_op = node.op_type();
    ostringstream layer_param;

    auto axes          = get_node_attr_ai(node, "axes");
    layer_param << axes.size() << " ";
    for (auto item : axes) {
        layer_param << item << " ";
    }

    return layer_param.str();
}

bool OnnxOpConverterUnsqueeze::HasLayerResource(NodeProto &node, OnnxNetInfo &net_info) {
    return false;
}

int OnnxOpConverterUnsqueeze::WriteTNNModel(Serializer *net_writer,
                                            NodeProto &node,
                                            OnnxNetInfo &net_info) {
    //有权值写入的返回1， 没有的返回0
    return 0;
}

REGISTER_OP_CONVERTER(Unsqueeze, Unsqueeze);
